Preheat oven to 350. In a small bowl mix together melted butter, Dijon, Worcestershire, garlic, and onion. Set aside.

Prepare the sliders by slicing through rolls and placing the tops aside. Keep rolls together so they are all touching. Place the bottoms on a foil-lined baking tray and layer with ham and fontina cheese. Distribute the Dalmatia Green Olive spread evenly, and place tops back onto the rolls.

Brush the melted butter mixture evenly onto all the rolls. Bake for 15-20 minutes or until golden brown.